* Accept info strings in code fences
According to the common mark standard, code fence info strings can be anything,
not just single words. Update the tests and parser accordingly.
The formatter already expected an info string with a language and HTML classes,
so this does not need to change. Update the LaTeX formatter to take the first
word of the info string as the language.
Fixes#410 (in v1).
* Don't output whole info string as code classes
This follows the common mark specification.
* run go fmt
The goal of this change is to reduce number of non-standard library
packages (repositories) that blackfriday imports from 1 to 0, and in
turn, reduce the cost of importing blackfriday into other projects.
Do so by documenting the algorithm of SanitizedAnchorName, and include
a copy of the small function inside blackfriday itself. The same
functionality continues to be available in the original location,
github.com/shurcooL/sanitized_anchor_name.Create. It can be used by
existing users and those that look for a small package, and don't need
all of blackfriday functionality. Existing users of blackfriday can use
the new SanitizedAnchorName function directly and avoid an extra
package import.
Resolves#350.
The LIST_ITEM_END_OF_LIST flag is an internal flag passed to renderers
when rendering list items. It's normally set for the last item in the
list.
This change fixes the issue where that flag wasn't set in situations
where the Markdown document ends with the list being the last block
level item in it.
The cases above detect and set LIST_ITEM_END_OF_LIST flag when the list
ends because another thing begins, but they miss it when the end of
document is reached.
No tests here because this subtle internal behavior is hard to test and
would require quite a bit of testing/mock infrastructure.
Helps shurcooL/markdownfmt#30.
This was an unintended typo/mistake in #280.
This is stricter, and it's fine. The opening fence line will always need to have a newline.
Add another test for isFenceLine.
In first pass, there may not be a trailing newline after a fenced code
block yet. Make newline optional in isFenceLine when calling
fencedCodeBlock to detect the fenced code block it anyway. This is more
complex, but it avoids creating temporary buffers or modifying input in
order to maintain performance (see #148).
Document and rename fencedCode to fencedCodeBlock.
Add regression tests.
Fixes#279.
These will be helpful for catching regressions or changes in behavior
to edge cases such as empty input, or specifically crafted inputs that
may cause panics, etc.
Move test for issue #172 there since it's a document-level test, not an
inline one.
Add test for issue #173.
Make some things more consistent.
Don't use a named receiver in methods that don't use it. This makes the
code more readable since one can more quickly tell the inputs to the
method.
Instead of swallowing an empty line and then reintroducing it back again
in certain cases, collect the list item body in an unaltered form and
let the recursive parsing call sort things out.
Fixes issue #228.
This is a better style for a set, since each value can only be present
or absent.
With bool as value type, each value may be absent, or true or false. It
also uses slightly more memory.
Add a call to fenced code block processor inside the loop that's
responsible for collecting the quoted lines. Grok all the fenced code
block as a part of the quoted text.
Closes#122.
Change approach at fixing #45: don't patch input markdown at preprocess
pass, instead improve special case detection when parsing paragraphs.
Leave the fenced code block detection in the preprocess pass though,
it's been put to another use since then, to suppress tab expansion
inside code blocks.
The problem was in a loop that skipped the optional closing hashes in a
heading like this:
### This is an H3 ###
Now it checks to see if a hash is escaped and if it is, treats it as a
rightmost character of the heading text, like this:
### This is an H3 #\## ==> ### This is an H3 ##
Fixes issue #146.
Apply gofmt on html.go.
Apply goimports-compatible formatting on block.go (space between standard and third party imports).
Move Travis build status image in a more pleasing, common location.
Remove "Markdown pretty-printer output engine" from TODO steps; this is already done in markdownfmt.
Remove unneeded trailing whitespace in README.
> This is a rework of an earlier version of this code.
The automatic header ID generation code submitted in #125 has a subtle
bug where it will use the same ID for multiple headers with identical
text. In the case below, all the headers are rendered a `<h1
id="header">Header</h1>`.
```markdown
# Header
# Header
# Header
# Header
```
This change is a simple but robust approach that uses an incrementing
counter and pre-checking to prevent header collision. (The above would
be rendered as `header`, `header-1`, `header-2`, and `header-3`.) In
more complex cases, it will append a new counter suffix (`-1`), like so:
```markdown
# Header
# Header 1
# Header
# Header
```
This will generate `header`, `header-1`, `header-1-1`, and `header-1-2`.
This code has two additional changes over the prior version:
1. Rather than reimplementing @shurcooL’s anchor sanitization code, I
have imported it as from
`github.com/shurcooL/go/github_flavored_markdown/sanitized_anchor_name`.
2. The markdown block parser is now only interested in *generating* a
sanitized anchor name, not with ensuring its uniqueness. That code
has been moved to the HTML renderer. This means that if the HTML
renderer is modified to identify all unique headers prior to
rendering, the hackish nature of the collision detection can be
eliminated.
- Fixes#51, #101, and #102.
- Uses the [code][gfm] mentioned by @shurcooL from his Github
Flavored Markdown parser extension in a [comment on #102][comment].
Since this was mentioned, I assumed that @shurcooL would be OK with
this being included under the licence provided by blackfriday (there
is no licence comment on his code).
- I’ve added it behind another flag, EXTENSION_AUTO_HEADER_IDS, that
would need to be turned on for it to work. It works with both prefix
and underline headers.
[gfm]: 3bec0366a8/github_flavored_markdown/main.go (L90-L102)
[comment]: https://github.com/russross/blackfriday/issues/102#issuecomment-51272260
